package junittest;

public class Calculator {
	public int add (int a,int b) {
		return a + b;
	}
	
	public int sub (int a,int b) {
		return a - b;
	}
	
	public int mul (int a,int b) {
		return a * b;
	}
	
	public int div (int a,int b) {
		return a / b;
	}
}
